Air treatment device



FIG. 1 is a perspective view of front the air treatment device;

FIG. 2 is an elevation view of the front of the air treatment device;

FIG. 3 is an elevation view of the back of the air treatment device;

FIG. 4 is an elevation view of a side of the air treatment device;

FIG. 5 is an elevation view of a further side of the air treatment device;

FIG. 6 is a plan view of the top of the air treatment device; and,

FIG. 7 is a plan view of the bottom of the air treatment device. 

CLAIM The ornamental design for an air treatment device, as shown and described. 